Sequin-Embroidered Long Formal Prom Dress 3139Wrap your curves in this sequin embroidered long prom dress from Colors Dress. A dazzling choice for prom, galas, and other formal events, this elegant long sequin evening gown shimmers from the curved neckline to the hem. In misses and some plus sizes, this long sequin formal dress has thin shoulder straps that create a statement as they lace up over the open back, while the long skirt has an alluring side slit and a small train that flows behind.